A5055827110- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Marine Biology and Ecology Research
- Ocean Acidification Effects and Responses
- Physiological and biochemical adaptations
- Marine and fisheries research
- Food and Agricultural Sciences
- Aquatic Ecosystems and Phytoplankton Dynamics
- Aquaculture Nutrition and Growth
- Water Quality Monitoring Technologies
- Geology and Paleoclimatology Research
- Animal Virus Infections Studies
- Mercury impact and mitigation studies
- Protist diversity and phylogeny
- Aquaculture disease management and microbiota
- Hydrocarbon exploration and reservoir analysis
- Aquatic life and conservation
- Crustacean biology and ecology
- Microbial Community Ecology and Physiology
- Vibrio bacteria research studies
- Molecular Biology Techniques and Applications
- Identification and Quantification in Food
- Marine Bivalve and Aquaculture Studies
Instituto Politécnico de Leiria
2022
Institut Català de Ciències del Clima
2019-2022
Institut de Ciències del Mar
2020-2022
University of Copenhagen
2022
Abstract Many protist plankton are mixotrophs, combining phototrophy and phagotrophy. Their role in freshwater marine ecology has emerged as a major developing feature of research over recent decades. To better aid discussions, we suggest these organisms termed “mixoplankton”, “planktonic that express, or have potential to phagotrophy”. The term “phytoplankton” then describes phototrophic incapable “Protozooplankton” phagotrophic protists do not engage acquired phototrophy. complexity the...
Abstract It remains unclear as to how mixoplankton (coupled phototrophy and phagotrophy in one cell) affects the estimation of grazing rates obtained from widely used dilution technique. To address this issue, we prepared laboratory-controlled experiments with known mixtures phyto-, protozoo-, mixoplankton, operated under different light regimes species combinations. Our results evidenced that chlorophyll is an inadequate proxy for phytoplankton when are present. Conversely, species-specific...
Vibriosis, an often-fatal disease induced by pathogenic members of the Vibrionaceae family, causes severe economic losses in aquacultures. To mitigate/avoid vibriosis outbursts, it is vital to detect and quantify these pathogens as early possible. However, standard microbiological methods are time-consuming often underestimate cell counts, which calls for development valid alternatives. In this study, real-time polymerase chain reaction (qPCR) was employed species Vibrio alginolyticus,...
Sudden environmental changes like marine heatwaves will become more intense and frequent in the future. Understanding physiological responses of mixoplankton protozooplankton, key members food webs, to temperature is crucial. Here, we studied two dinoflagellates (one protozoo- one mixoplanktonic), ciliates cryptophytes. We report acute (24 h) on growth grazing a range temperatures (5-34 °C). also determined respiration photosynthetic rates for four grazers within 6 °C warming. The thermal...
Phagotrophic mixotrophs (mixoplankton) are now widely recognised as important members of food webs, but their role in the functioning webs is not yet fully understood. This due to lack a well-established technique estimate mixotrophic grazing. An immediate step this direction would be development method that separates from heterotrophic grazing can routinely incorporated into common techniques used measure microplankton herbivory (e.g., dilution technique). idea was explored by addition...
The Live Fluorescently Labelled Algae (LFLA) technique has been used numerous times to estimate microzooplankton herbivory. Yet, it is unknown how mixoplankton (i.e., single-cell organisms that can combine phototrophy and phagotrophy) affect the outcome of this technique. Hence, we conducted a broad-spectrum assessment strengths weaknesses LFLA technique, using several mixoplanktonic protozooplanktonic grazers. Species from different taxonomic groups feeding mechanisms were tested in...
Event Abstract Back to A novel protocol for the laboratory rearing of mysid species Mesopodopsis slabberi (Van Beneden, 1861) Inês A. Ferreira1*, Guilherme D. Lénia Rato1 and Sérgio M. Leandro1 1 Polytechnic Institute Leiria, Portugal Seahorses from Syngnathidae family are slowly gathering importance throughout world as ornamental market. However, promoting their growth in captivity is complicated due difficulties finding a proper feed. Mysids such present themselves an effective food source...
Inter-individual variability plays a key role in species resilience. This, however, is difficult to assess marine invertebrates with complex life cycles due the inherent difficulty of sampling individuals oceanic environments throughout their ontogeny. This study monitored effect contrasting oceanographic conditions, namely downwelling and upwelling, on inter-variability embryos megalopae (the final larval stage) model brachyuran crab Carcinus maenas . We assessed i) heterogeneity energetic...